Condensed Consolidated Balance Sheets (Parentheticals) (USD $)	Sep. 30, 2011	Mar. 31, 2011
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	0	0
Common stock, par value (in dollars per share)
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	11,965,585	11,806,660
Common stock, shares outstanding (in shares)	11,965,585	11,806,660